Module batch

A handle to a batch of updates

Modules

proto_fetch_batch_filter

Nested message and enum types in ProtoFetchBatchFilter.

Structs

Batch

A handle to a batch of updates that has been written to blob storage but which has not yet been appended to a shard.

BatchBuilder

A builder for Batches that allows adding updates piece by piece and then finishing it.

BatchBuilderConfig

A snapshot of dynamic configs to make it easier to reason about an individual run of BatchBuilder.

BatchBuilderInternal 🔒

BatchParts 🔒

PartDeletes 🔒

ProtoBatch

ProtoFetchBatchFilter

ProtoFetchBatchFilterListen

ProtoLease

ProtoLeasedBatchPart

This is only to impl ExchangeData, and so used between processes running the same version of code. It’s not durably written down anywhere.

UntrimmableColumns 🔒

A list of (lowercase) column names that persist will always retain stats for, even if it means going over the stats budget.

Enums

Added

Indicates what work was done in a call to BatchBuilder::add

WritingRuns 🔒

Constants

BATCH_DELETE_ENABLED 🔒

BLOB_TARGET_SIZE 🔒

A target maximum size of blob payloads in bytes. If a logical “batch” is bigger than this, it will be broken up into smaller, independent pieces. This is best-effort, not a guarantee (though as of 2022-06-09, we happen to always respect it). This target size doesn’t apply for an individual update that exceeds it in size, but that scenario is almost certainly a mis-use of the system.

ENCODING_COMPRESSION_FORMAT 🔒

ENCODING_ENABLE_DICTIONARY 🔒

INLINE_WRITES_SINGLE_MAX_BYTES 🔒

INLINE_WRITES_TOTAL_MAX_BYTES 🔒

MAX_RUNS 🔒

MAX_RUN_LEN 🔒

STRUCTURED_KEY_LOWER_LEN 🔒

Functions

diffs_sum 🔒

Returns the total sum of diffs or None if there were no updates.

validate_truncate_batch 🔒